Here's an animation from the NTSB of the near miss at ORD back in July.
This three dimensional animated reconstruction shows the runway incursion incident between an Atlas Air B747 and an United Airlines B737 at the Chicago O’Hare International Airport in Chicago, Illinois on July 23, 2006. The following incident reconstruction displays information from the flight data recorder, Air Traffic Communication, recorded radar data, and aircraft performance data.
http://www.ntsb.gov/Events/2006/Most...escription.htm